This implies that both GZ and Longacre have good chance of returning

Assuming that surgeries done today are better than surgeries done a decade ago, and assuming that healing time is no worse than the 9 month average, then it looks like both GZ and Longacre can probably be penciled in to start the 2018 season, but will have limited training camp/preseason action. This explains why the Rams re-signed that kicker that finished out the year for the team. GZ has several more months of healing to go.